1. Academy for Educational Development,Beyond the Flipchart: Three Decades of Development Communication. Washington, D.C.: Academy for Educational Development, 1985.
2. Agunga, Robert, “Development support communication and popular participation in development projects,”Gazette 45 (1990) 137–155.
3. Ascroft, Joseph and Sipho Masilela, “From Top-down to Co-equal Communication: Popular Participation in Development Decision-Making,” Seminar paper forParticipation: A Key Concept in Communication and Development, University of Poona, Pune, India, Feb. 20–27, 1989.
4. Beltran, Luis Ramiro, “A Farewell to Aristotle: ‘Horizontal’ Communication,”Communication 5: 5–41.
5. Brendlinger, Nancy,A Study of 11 Wisconsin Organic Farmers' Characteristics, Production Methods and Information Seeking Behavior, Unpublished master's thesis, University of Wisconsin-Madison, Department of Agricultural Journalism, 1984.